The AI feedback loop: Researchers warn of ‘model collapse’ as AI trains on AI-generated content

mesamune@lemmy.world to Technology@lemmy.world – 447 points –
venturebeat.com
85

Collapse faster, please. Sick of ai bullshit clogging up my searches.

The Internet is fucked now, the only valuable untainted training data is the Internet as it existed prior to this AI bullshit coming online. Confirmed human content is going to be super valuable, so expect our privacy to be fucked as well..

Did anyone take a copy?

Even that is going to turn into a shit show ... It will become a copy of a copy of a copy of a backup of a backup of a copy and all of it will just get rendered down to some common basics based on whatever the hell was marketed and promoted by bots

The collapse won't stop ai output from spamming the internet though. It will just make it worse and more likely to be incorrect

We can just stop checking the internet for things

It's not going to. It's just going to get more widespread and harder to detect. The incentives favor developing better and better AI. Luckily one of the solutions to this issue is - wait for it - AI. With a good enough AI, especially a generally intelligent one you don't need search engines anymore. You just ask and it gives you the answer. If you think AI couldn't do this reliably then that is not the AI I'm talking about.

My team has been calling models that use ai generated data "Habsberg models"

I feel there is a good joke here, but I miss the knowledge to understand it. Care to enlighten me?

The Habsburg royal family line was famously inbred with a distinctive chin.

For anyone curious on how bad it got look up the coroners report on Charles of Spain. Its fucken grizzly.

Maybe we need to label AI-generated content to, you know, avoid confusion.

Sorry, best we can do is a race to the bottom fueled by greed and incompetence.

That will be a refeshing change.

That's what has been happening, and is likely what will continue to happen. Not much change there really...

I'm sure we can compromise on a mandatory database of registered AI-generated content that only the corporations can read from but everyone using AI-generated content is required by law to write to, with hefty fines (but only for regular people).

Oh goody. I've been wanting to use this since my slashdot days... today is my first chance!

Your post advocates a

[x] technical
[ ] legislative
[ ] market-based
[ ] vigilante

approach to fighting (ML-generated) spam. Your idea will not work. Here is why
it won't work. [One or more of the following may apply to your particular idea,
and it may have other flaws which used to vary from state to state before a bad
federal law was passed.]

[ ] Spammers can easily use it to harvest email addresses
[ ] Mailing lists and other legitimate email uses would be affected
[ ] No one will be able to find the guy or collect the money
[ ] It is defenseless against brute force attacks
[ ] It will stop spam for two weeks and then we'll be stuck with it
[ ] Users of email will not put up with it
[x] Microsoft will not put up with it
[ ] The police will not put up with it
[x] Requires too much cooperation from spammers
[x] Requires immediate total cooperation from everybody at once
[ ] Many email users cannot afford to lose business or alienate potential employers
[ ] Spammers don't care about invalid addresses in their lists
[ ] Anyone could anonymously destroy anyone else's career or business

Specifically, your plan fails to account for

[ ] Laws expressly prohibiting it
[x] Lack of centrally controlling authority for email^W ML algorithms
[ ] Open relays in foreign countries
[ ] Ease of searching tiny alphanumeric address space of all email addresses
[x] Asshats
[ ] Jurisdictional problems
[ ] Unpopularity of weird new taxes
[ ] Public reluctance to accept weird new forms of money
[ ] Huge existing software investment in SMTP
[ ] Susceptibility of protocols other than SMTP to attack
[ ] Willingness of users to install OS patches received by email
[ ] Armies of worm riddled broadband-connected Windows boxes
[x] Eternal arms race involved in all filtering approaches
[x] Extreme profitability of spam
[ ] Joe jobs and/or identity theft
[ ] Technically illiterate politicians
[ ] Extreme stupidity on the part of people who do business with spammers
[x] Dishonesty on the part of spammers themselves
[ ] Bandwidth costs that are unaffected by client filtering
[x] Outlook

and the following philosophical objections may also apply:

[x] Ideas similar to yours are easy to come up with, yet none have ever
been shown practical
[ ] Any scheme based on opt-out is unacceptable
[ ] SMTP headers should not be the subject of legislation
[ ] Blacklists suck
[ ] Whitelists suck
[ ] We should be able to talk about Viagra without being censored
[ ] Countermeasures should not involve wire fraud or credit card fraud
[ ] Countermeasures should not involve sabotage of public networks
[ ] Countermeasures must work if phased in gradually
[ ] Sending email should be free
[x] Why should we have to trust you and your servers?
[ ] Incompatiblity with open source or open source licenses
[x] Feel-good measures do nothing to solve the problem
[ ] Temporary/one-time email addresses are cumbersome
[ ] I don't want the government reading my email
[ ] Killing them that way is not slow and painful enough

Furthermore, this is what I think about you:

[x] Sorry dude, but I don't think it would work.
[ ] This is a stupid idea, and you're a stupid person for suggesting it.
[ ] Nice try, assh0le! I'm going to find out where you live and burn your
house down!

Oh, do me next, do me. Open source adversarial models trained to detect and actively label things which it detects as belonging to AI. Probably would end up looking like a browser extension or something. Ublock, but for AI, basically.

Sounds like something an advanced language learning model would say....

It's important to understand that a language modelling AI can only produce responses based on its inputs.

Sounds great, how do we enforce it?

If the AIs want to avoid digital incest they'll enforce it for themselves.

The AIs dont want anything themselves and those who make the decisions about them want the most profit, what costs more, verifying training data or AI incest?

Most people here don’t understand what this is saying.

We’ve had “pure” human generated data, verifiably so since LLMs and ImageGen didn’t exist. Any bot generated data was easily filterable due to lack of sophistication.

ChatGPT and SD3 enter the chat, generate nearly indistinguishable data from humans, but with a few errors here and there. These errors while few, are spectacular and make no sense to the training data.

2 years later, the internet is saturated with generated content. The old datasets are like gold now, since non of the new data is verifiably human.

This matters when you’ve played with local machine learning and understand how these machines “think”. If you feed an AI generated set to an AI as training data, it learns the mistakes as well as the data. Every generation it’s like mutations form until eventually it just produces garbage.

Training models on generated sets slowly by surely fail without a human touch. Scale this concept to the net fractionally. When 50% of your dataset is machine generated, 50% of your new model trained on it will begin to deteriorate. Do this long enough and that 50% becomes 60 to 70 and beyond.

Human creativity and thought have yet to be replicated. These models have no human ability to be discerning or sleep to recover errors. They simple learn imperfectly and generate new less perfect data in a digestible form.

Looks like we need Low-Background-Content

Can you explain further more ? Sorry I may understand but not sure

Low Background Radiation Steel was/is valuable, because it's made of steel from before nuclear testing. As the bombs contaminated the produced steel.

In the same sense, anything before the creation of LLMs would be considered "low background radiation" content, as that's the only content to be sure to be made without LLMs in the loop

Back when i was though concept art as a subject at college my teacher had a name for this.

“Incest” cause every generation of art that references other art becomes more and more strange looking and detached from reality.

If you thought Skyrim weapons look ridiculous you should have seen my classmates Skyrim inspired weapons.

If you think that looked ridiculous, you should have seen the Skyrim weapons inspired by your classmates weapons.

Anecdotally speaking, I've been suspecting this was happening already with code related AI as I've been noticing a pretty steep decline in code quality of the code suggestions various AI tools have been providing.

Some of these tools, like GitHub's AI product, are trained on their own code repositories. As more and more developers use AI to help generate code and especially as more novice level developers rely on AI to help learn new technologies, more of that AI generated code is getting added to the repos (in theory) that are used to train the AI. Not that all AI code is garbage, but there's enough that is garbage in my experience, that I suspect it's going to be a garbage in, garbage out affair sans human correction/oversight. Currently, as far as I can tell, these tools aren't really using much in the way of good metrics to rate whether the code they are training on is quality or not, nor whether it actually even works or not.

More and more often I'm getting ungrounded output (the new term for hallucinations) when it comes to code, rather than the actual helpful and relevant stuff that had me so excited when I first started using these products. And I worry that it's going to get worse. I hope not, of course, but it is a little concerning when the AI tools are more consistently providing useless / broken suggestions.

There will soon be a filter on the “best” developers, if there isn’t one already.

For a rough approach, imagine a parrot taught by another parrot, which was in turn taught by another parrot which was taught by a human.

Sure, some things might survive as somewhat understandable vaguelly human sounding sentences, but overall it's still going to be pretty bad a few parrots down the chain.

The "solutions" to model collapse - essentially retraining on the original data set - suggests LLMs plateau or deteriorate. Especially without a way to separate out good and bad quality data (or ad they euohemistically try and say human vs AI data).

Were increasingly seeing the limitations and flaws with LLMs. "Hallucinations" or better described as serious errors, model collapse and complete collapse suggest the current approach to LLMs is probably not going to lead to some gone of general AI. We have models we don't really understand that have fundamental flaws and limitations.

Unsurprising that they probably can't live up to the hype.

Even if it will plateau, same was said with moorrs law, which held up way longer than expected. There are so many ways to improve this. Open source community is getting to the point where you can actually run decent models on normal private hardware (talking about 70-120b model)

I mean it makes sense. Machine learning is fantastic at noticing patterns, and the stuff they generate most definitely do have patterns. We might not notice them, but the models will pick up on them and eventually, if you keep training them on that data, they'll skew more and more in that direction.

They've been marketing things like there isn't a limit to how good these things can get, but there is. Nothing is infinite.

I've tried to make this point several times to folks in the industry. I work in AI, and yet every time I approach some people with "you know it ultimately just repeats patterns", I'm met with scoffs and those people telling me I'm just not "seeing the big picture".

But I am, and the truth is that there are limits. This tech is not the digital singularity the marketers and business goons want everyone to think it is.

It repeats things that sort of sound intelligent to try and convince everyone that actual intelligent thought is taking place? It really is just like humans!

They don't really parrot unless they're overfitted.

It's more that they have been trained to produce a certain kind of result. One method you can train them on is by basically assigning a score on how good the output is. Doing this manually takes a lot of time (Google has been doing this for years via captcha), or you could train other models to score text for you.

The obvious problem with the latter solution is that then you need to ensure that that model is scoring roughly in line with how humans would score it; the technical term for this is alignment. There's a pretty funny story about that with GPT-2, presented in a really cute animation format by Robert Miles.

Tell me about it. All the government contractors I work with. Just repeating the same submittal over and over and over again.

Its funny how something like this get posted every few days and people keep falling for it like its somehow going to end AI. The people that make these models are acutely aware of how to avoid model collapse.

It's totally fine for AI models to train on AI generated content that is of high enough quality. Part of the research to train models is building data sets with a text description matching the content, and filtering out content that is not organic enough (or even specifically including it as a 'bad' example for the AI to avoid). AI can produce material indistinguishable from human work, and it produces material that wasn't originally in the training data. There's no reason that can't be good training data itself.

Especially since they can just pay someone to sit down and sift through it, or re-use the old training data that they already have from before it all blew up.

This article is from June 12, 2023. That's practically stone-aged as far as AI technology has been progressing.

The paper it's based on used a very simplistic approach, training AIs purely on the outputs of its previous "generation." Turns out that's not a realistic real-world scenario, though. In reality AIs can be trained on a mixture of human-generated and AI-generated content and it can actually turn out better than training on human-generated content alone. AI-generated content can be curated and custom-made to be better suited to training, and the human-generated stuff adds back in the edge cases that might disappear when doing repeated training generations.

If the AI generated content is labeled, or has context, or has comments or descriptions created by people, then wouldn't it just be the same as synthetic training data? Which is shown to still be very useful for training.

Yes it's still useful and it's basically how we made our last couple of jumps. An AI training on AI generated data being graded by another AI. We've hit diminishing returns though.

Most AI-generated data in the wild won't have labels because there's no incentive to label it, and in a lot of cases there are incentives to not label it.

Sorta. This "model collapse" thing is basically an urban legend at this point.

The kernel of truth is this: A model learns stuff. When you use that model to generate training data, it will not output all it has learned. The second generation model will not know as much as the first. If you repeat this process a couple times, you are left with nothing. It's hard to see how this could become a problem in the real world.

Incest is a good analogy, if you know what the problem with inbreeding is: You lose genetic diversity. Still, breeders use this to get to desired traits and so does nature (genetic bottleneck, founder effect).

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It would be hilarious if we entered the deep fried Marquaud era of ai where responses degenerate into rehashed responses that just get progressively more jumbled and unintelligible as the models cannibalise each other's generated content

Like a billion hours of YouTube videos out there I am not seeing the issue plus the entire library of Congress

now that the low hanging fruit of internet scraping is exhausted, we're gonna have to start purpose-building datasets. this will be expensive and might be the new bottleneck on AI progress.

Wasn't there a paper not long time ago that it was possible to generate data with AI as a training set for AI? I was surprised (and the math is to much for me to check out my self) but that seems to solve that problem.

Microsoft's Phi model was largely trained on synthetic data derived from GPT-4.

I'm to lazy to search for the paper, not sure it was Microsoft, but with my rather basic knowledge of modeling (studied system biology) - it seemed rather crazy and impossible, so I remembered it.

As far as I know, that is mainly used where a better, bigger model generates training data for a more efficient smaller model to bring it a bit closer to its level.

Were there any cases of an already state of the art model using this method to improve itself?

Sorta. This "model collapse" thing is basically an urban legend at this point.

The kernel of truth is this: A model learns stuff. When you use that model to generate training data, it will not output all it has learned. The second generation model will not know as much as the first. If you repeat this process a couple times, you are left with nothing. It's hard to see how this could become a problem in the real world.

Incest is a good analogy, if you know what the problem with inbreeding is: You lose genetic diversity. Still, breeders use this to get to desired traits and so does nature (genetic bottleneck, founder effect).

Training data for models in general was a big problem when I studied systems biology. Interesting that we finding works around, since it sounded rather fundamental to me. I found your metaphor rather helpful, thanks.

I wouldn't say we've really found a workaround. AI companies hire lots of people to parse and clean data. That can work for things like pose estimation, which are largely a once and done thing. But for things that are constantly evolving, language/art/videos, it may not be a viable long term strategy.

Ok, seriously? Fuck this research. It's bullshit.

Want to know how I can declare that so confidently? Because I wrote a program called duo. It's literally two chatbots instead of one, running locally on 5+ year old hardware. These are low powered llama's fine tuned by the community for general purpose last year

I just played a DND campaign with a chatbot and her hallucinated girlfriend (ai 1 wrote the prompt for AI 2, no edits or modifications). I've never played DND before, but they said they wanted to go to a haunted escape room. I have been to one of the most haunted locations in America, so I decided to be DM, and apparently they come with their own dice. Tomorrow I'm going to send the transcript to a friend who was looking for a DND player

Yes, clickbait is terrible training data, and low grade LLMs can really pump it out.

I had enough fun I fell asleep at my desk, and I did nothing but describe a location I've been to and the sounds I heard (and some urban legends)...I could spend a month and have replaced myself in the experience.

Other times I've let them run with no interaction on my part they've hallucinated (feasible) apps I'm not making to the point I could throw it into a design document, and games good enough to land on my to-do list.

Why don't people see this for the miracle technology this is? If it isn't reliable on one pass, do a second to evaluate the first, another to run chain of thought on problem areas, another one to flesh it out and rinse and repeat if you need to.

This is such a simple engineering problem it's not even funny

this comment reads like it was written by a LLM.

That's how someone with ADHD sounds without a filter (we can understand each other at least). All I did is leave out the transitions that links these (to me, obviously related) concepts together

LLMs are the other way around - way to much transition with little substance.

Everything about my experiences experimenting with LLMs sounds unhinged without proof anyways. So I don't see a need to edit my late night rant, eventually I'll start a blog to lay out my methodology and chat logs to support it